--merange 16

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14533.37 kbps 0.9995370290769577 49.48871485088953 98.65732330708539 96.0 fps vmaf: 0.00%
ssim: 0.00%
psnr-hvs: 0.00%
x264 --demuxer y4m --crf {q} --preset slow --merange 16 -o "{o}" -
18 8413.29 kbps 0.9991269913549452 47.60148782401213 98.31220213091414 119.65 fps
22 5268.37 kbps 0.9983291987702448 45.31149426792426 97.61264538672174 143.1 fps
26 3486.68 kbps 0.9967218016298873 42.558694284779506 96.00729975831963 163.75 fps

--non-deterministic

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14442.95 kbps 0.9995362188363831 49.4882348595042 98.65633976748168 94.71 fps vmaf: -0.52%
ssim: -0.65%
psnr-hvs: -0.65%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic -o "{o}" -
18 8362.35 kbps 0.9991267321967083 47.60212038185554 98.31228880172917 118.79 fps
22 5235.21 kbps 0.9983290921999761 45.31189580990111 97.60906624302059 139.78 fps
26 3456.96 kbps 0.9967190641266755 42.55140694047107 95.99084301449865 163.29 fps

--non-deterministic --aq-mode 1

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14448.56 kbps 0.999536379615102 49.48872721988392 98.65677334353859 97.77 fps vmaf: -0.72%
ssim: -0.81%
psnr-hvs: -0.77%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic --aq-mode 1 -o "{o}" -
18 8362.43 kbps 0.9991265506819835 47.602549308467225 98.31222507958601 121.46 fps
22 5224.23 kbps 0.9983289153241728 45.31296455672894 97.60983144503119 145.14 fps
26 3452.23 kbps 0.9967212533077278 42.55122925646797 95.99267413629468 163.02 fps

--non-deterministic --aq-strength 1

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14441.25 kbps 0.999536301277178 49.487636010338306 98.65625206735307 95.57 fps vmaf: -0.69%
ssim: -0.70%
psnr-hvs: -0.69%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic --aq-strength 1 -o "{o}" -
18 8361.15 kbps 0.9991265789127463 47.602652993064794 98.31465963895114 120.92 fps
22 5229.39 kbps 0.9983286535487161 45.31053734014929 97.6118112253894 144.23 fps
26 3458.27 kbps 0.9967195791458109 42.55391897002269 95.99322837896588 165.55 fps

--non-deterministic --qcomp 0.6

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14440.44 kbps 0.9995363727111312 49.489628476880746 98.65681515065222 95.18 fps vmaf: -0.60%
ssim: -0.70%
psnr-hvs: -0.67%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic --qcomp 0.6 -o "{o}" -
18 8372.39 kbps 0.9991265443635622 47.60113316843829 98.31212133303158 117.63 fps
22 5231.18 kbps 0.9983289829370855 45.31327544221318 97.60948970817552 143.39 fps
26 3454.96 kbps 0.9967192512205751 42.55453341931204 95.99350503151203 164.46 fps

--me umh

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14423.38 kbps 0.9995379525214991 49.495059792391004 98.65714095842942 79.29 fps vmaf: -0.86%
ssim: -1.15%
psnr-hvs: -1.08%
x264 --demuxer y4m --crf {q} --preset slow --me umh -o "{o}" -
18 8335.45 kbps 0.9991283870634041 47.603134299796245 98.3111196699147 97.6 fps
22 5213.56 kbps 0.9983314251844236 45.31843572382308 97.60769760548477 116.32 fps
26 3448.12 kbps 0.9967360338226747 42.56476103505213 95.99938930888115 127.27 fps

--subme 9

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14501.7 kbps 0.9995380858922182 49.49678479336808 98.66188498072079 86.68 fps vmaf: -1.17%
ssim: -0.95%
psnr-hvs: -0.66%
x264 --demuxer y4m --crf {q} --preset slow --subme 9 -o "{o}" -
18 8398.4 kbps 0.9991320342936706 47.62065865879837 98.32712344964986 104.64 fps
22 5276.86 kbps 0.9983558112336033 45.35586991714917 97.6401508262168 120.12 fps
26 3478.41 kbps 0.9967912819308259 42.6161133585984 96.07129550048144 132.11 fps

--subme 10

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 13638.78 kbps 0.9995012074971185 49.301510097549695 98.6475548606111 61.51 fps vmaf: -5.65%
ssim: -1.54%
psnr-hvs: -0.93%
x264 --demuxer y4m --crf {q} --preset slow --subme 10 -o "{o}" -
18 7853.97 kbps 0.9990557643910826 47.33706314722792 98.29644751311969 80.51 fps
22 4920.7 kbps 0.9981956184402334 44.98401029614125 97.59071359437922 98.71 fps
26 3264.34 kbps 0.9964832322436653 42.18413387748924 95.99706039346424 114.77 fps

--ref 6

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14519.91 kbps 0.9995375171097486 49.49435666158428 98.65750548100601 91.16 fps vmaf: -0.12%
ssim: -0.14%
psnr-hvs: -0.17%
x264 --demuxer y4m --crf {q} --preset slow --ref 6 -o "{o}" -
18 8407.48 kbps 0.9991278176831064 47.605186288942356 98.31395952497078 108.61 fps
22 5262.35 kbps 0.9983297752101771 45.31485405203104 97.61305172826067 130.7 fps
26 3482.97 kbps 0.9967229384759769 42.55882234691299 96.00170692854827 149.32 fps

--ref 8

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14488.95 kbps 0.9995379373455147 49.49636004242277 98.65756903737243 76.15 fps vmaf: -0.34%
ssim: -0.43%
psnr-hvs: -0.45%
x264 --demuxer y4m --crf {q} --preset slow --ref 8 -o "{o}" -
18 8391.23 kbps 0.9991285210839097 47.607890629653916 98.31461593436197 93.4 fps
22 5252.14 kbps 0.9983318556770989 45.32071522040199 97.61188588489388 112.61 fps
26 3472.61 kbps 0.9967247081700276 42.558465818669795 96.00780551164223 127.0 fps

--ref 16

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14464.35 kbps 0.9995382325645845 49.50139761567347 98.65749898828804 60.53 fps vmaf: -0.80%
ssim: -0.75%
psnr-hvs: -0.81%
x264 --demuxer y4m --crf {q} --preset slow --ref 16 -o "{o}" -
18 8372.32 kbps 0.9991296199945265 47.61349999564668 98.31503271362628 73.37 fps
22 5237.3 kbps 0.9983331666703246 45.3255946165431 97.61910126695888 86.5 fps
26 3463.96 kbps 0.9967277590325436 42.56639327832397 96.00707461328564 96.99 fps

--merange 24

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14533.37 kbps 0.9995370290769577 49.48871485088953 98.65732330708539 94.4 fps vmaf: 0.00%
ssim: 0.00%
psnr-hvs: 0.00%
x264 --demuxer y4m --crf {q} --preset slow --merange 24 -o "{o}" -
18 8413.29 kbps 0.9991269913549452 47.60148782401213 98.31220213091414 118.87 fps
22 5268.37 kbps 0.9983291987702448 45.31149426792426 97.61264538672174 141.96 fps
26 3486.68 kbps 0.9967218016298873 42.558694284779506 96.00729975831963 163.55 fps

--me umh --merange 24

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14433.92 kbps 0.9995381213569825 49.49591266550794 98.6549468899029 73.43 fps vmaf: -0.84%
ssim: -1.26%
psnr-hvs: -1.19%
x264 --demuxer y4m --crf {q} --preset slow --me umh --merange 24 -o "{o}" -
18 8331.84 kbps 0.9991281077073059 47.60574732906339 98.30889041838566 89.34 fps
22 5206.67 kbps 0.998331535541523 45.31856738046767 97.60512873230135 102.79 fps
26 3443.47 kbps 0.9967356343881218 42.5626101249285 95.99632547522198 118.64 fps

--no-dct-decimate

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14964.05 kbps 0.9995471786790616 49.55923921434222 98.66608359379453 92.92 fps vmaf: -0.15%
ssim: -0.29%
psnr-hvs: -0.42%
x264 --demuxer y4m --crf {q} --preset slow --no-dct-decimate -o "{o}" -
18 8582.53 kbps 0.9991522624494835 47.69927275130658 98.33392074464474 117.13 fps
22 5327.09 kbps 0.9983656218893276 45.409699071888774 97.64116511924009 140.98 fps
26 3517.23 kbps 0.9967894429570907 42.65509666306376 96.07754820865127 161.57 fps

--b-adapt 2

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 13789.42 kbps 0.9995205493986278 49.388717871462596 98.6498641656272 85.51 fps vmaf: -2.32%
ssim: -1.24%
psnr-hvs: -1.91%
x264 --demuxer y4m --crf {q} --preset slow --b-adapt 2 -o "{o}" -
18 8045.02 kbps 0.9990944236149132 47.51122679406084 98.30354184442399 106.02 fps
22 5082.27 kbps 0.9982638898615752 45.19966750418493 97.58181391172947 122.05 fps
26 3360.88 kbps 0.9965889696599632 42.431082759313576 95.87147691490543 136.35 fps

--deadzone-inter 6 --deadzone-intra 6

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14554.82 kbps 0.9995377727423577 49.48775713108141 98.65937408749842 93.14 fps vmaf: -0.30%
ssim: -0.46%
psnr-hvs: -0.54%
x264 --demuxer y4m --crf {q} --preset slow --deadzone-inter 6 --deadzone-intra 6 -o "{o}" -
18 8432.13 kbps 0.999133083194074 47.627640441478995 98.31677027280125 116.47 fps
22 5290.34 kbps 0.9983517403804244 45.37421139436561 97.62931193255353 139.08 fps
26 3499.53 kbps 0.9967794895231677 42.65209121104022 96.05011692060545 156.26 fps

--sync-lookahead 24

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14533.37 kbps 0.9995370290769577 49.48871485088953 98.65732330708539 90.19 fps vmaf: 0.00%
ssim: 0.00%
psnr-hvs: 0.00%
x264 --demuxer y4m --crf {q} --preset slow --sync-lookahead 24 -o "{o}" -
18 8413.29 kbps 0.9991269913549452 47.60148782401213 98.31220213091414 117.93 fps
22 5268.37 kbps 0.9983291987702448 45.31149426792426 97.61264538672174 142.01 fps
26 3486.68 kbps 0.9967218016298873 42.558694284779506 96.00729975831963 159.39 fps

--lookahead-threads 1

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14387.38 kbps 0.9995333264876131 49.469768592205966 98.65334257090386 79.57 fps vmaf: -0.63%
ssim: -0.93%
psnr-hvs: -0.92%
x264 --demuxer y4m --crf {q} --preset slow --lookahead-threads 1 -o "{o}" -
18 8323.28 kbps 0.9991224293987292 47.589319802135655 98.30803167239232 90.55 fps
22 5206.69 kbps 0.998323557372514 45.30412615322507 97.59839091805544 93.78 fps
26 3438.68 kbps 0.9967096741687883 42.547902918260085 95.97947544433619 98.29 fps

--no-fast-pskip

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 14560.75 kbps 0.9995379206841836 49.48944480200794 98.6573996584286 93.0 fps vmaf: 0.28%
ssim: -0.01%
psnr-hvs: -0.33%
x264 --demuxer y4m --crf {q} --preset slow --no-fast-pskip -o "{o}" -
18 8450.05 kbps 0.9991341462872204 47.636007761163405 98.31866597350897 115.48 fps
22 5338.48 kbps 0.9983611937895255 45.40297990578264 97.63611180019875 136.99 fps
26 3540.46 kbps 0.9968141500503843 42.72666999349777 96.08198852655936 156.93 fps

--preset veryslow

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 12634.37 kbps 0.9994846722497134 49.201616639398594 98.63611862034422 26.04 fps vmaf: -9.26%
ssim: -5.32%
psnr-hvs: -5.32%
x264 --demuxer y4m --crf {q} --preset slow --preset veryslow -o "{o}" -
18 7330.98 kbps 0.9990249524872155 47.25134617812075 98.27427925172671 30.72 fps
22 4641.18 kbps 0.9981367411067564 44.8900752720297 97.54075819700353 34.26 fps
26 3079.96 kbps 0.9963838925703199 42.091426110027946 95.86845161359234 37.4 fps

--non-deterministic --no-dct-decimate --deadzone-inter 6 --deadzone-intra 6 --b-adapt 2 --lookahead-threads 1 --me umh --subme 10 --ref 6

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 13040.69 kbps 0.9994954446642548 49.2748718779087 98.65045394469193 42.35 fps vmaf: -10.70%
ssim: -6.37%
psnr-hvs: -6.47%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic --no-dct-decimate --deadzone-inter 6 --deadzone-intra 6 --b-adapt 2 --lookahead-threads 1 --me umh --subme 10 --ref 6 -o "{o}" -
18 7473.7 kbps 0.9990552710394459 47.371706251745906 98.30139002742557 49.17 fps
22 4694.1 kbps 0.9982038757156074 45.05884611688234 97.60883406141144 52.76 fps
26 3103.32 kbps 0.9965248820713767 42.30622031199595 96.03525348853297 55.9 fps

--non-deterministic --no-dct-decimate --deadzone-inter 6 --deadzone-intra 6 --b-adapt 2 --lookahead-threads 2 --me umh --subme 10 --ref 6

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 13136.39 kbps 0.9994958660752774 49.278356937823844 98.65076099056938 47.13 fps vmaf: -9.46%
ssim: -5.09%
psnr-hvs: -5.27%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic --no-dct-decimate --deadzone-inter 6 --deadzone-intra 6 --b-adapt 2 --lookahead-threads 2 --me umh --subme 10 --ref 6 -o "{o}" -
18 7563.96 kbps 0.9990554712111691 47.373156081683604 98.3017028558383 57.37 fps
22 4758.58 kbps 0.9982026959425907 45.056919247580225 97.6073267682965 65.58 fps
26 3154.01 kbps 0.9965242146677658 42.300550731457705 96.04662176451085 73.03 fps

--non-deterministic --no-dct-decimate --deadzone-inter 6 --deadzone-intra 6 --b-adapt 2 --lookahead-threads 3 --me umh --subme 10 --ref 6

q bitrate ssim psnr-hvs vmaf speed bd-rate args
14 13069.11 kbps 0.999494871870696 49.26866114022348 98.65129024359918 46.69 fps vmaf: -9.61%
ssim: -5.16%
psnr-hvs: -5.28%
x264 --demuxer y4m --crf {q} --preset slow --non-deterministic --no-dct-decimate --deadzone-inter 6 --deadzone-intra 6 --b-adapt 2 --lookahead-threads 3 --me umh --subme 10 --ref 6 -o "{o}" -
18 7527.16 kbps 0.9990534256289606 47.36195251465031 98.29991697890347 58.72 fps
22 4751.48 kbps 0.9981985041862799 45.038440509151734 97.6088268988253 69.41 fps
26 3145.76 kbps 0.9965160972866478 42.273085797427804 96.01651020632266 77.77 fps